Yarn-stripper.



J. B. BOLTON.

YARN STRIPPER.

AIPLIGATION FILED JAN.20, 1910.

Patented July 19, 1910.

3 HEIGHTS-SHEET 1.

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l l l l I IL J. B. BOLTON.

YARN STRIPPER- APPLICATION FILED JAN. 20, 1910.

964,484. Patented July 19, 1910.

3 SHEETS-SHEET 2.

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J. B. BOLTON.

YARN STRIPPER- APPLICATION FILED JAN. 20, 1910.

Patented July 19, 1910.

3 SHEETS-SHEET 3.

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JOHN B. BOLTON, OF LAWRENCE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY, OF PORTLAND, MAINE, A. CORPORATION OF MAINE.

YARN-STRIPPER.

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' Specification of Letters Patent.

Patented July 19, 1910.

. To all whom it may concern:

' weft-carrier is automatically ejected from the working shuttle and replaced by another while a small amount of weft still remains 'On it.

- The purpose of the yarn stripper is to automatically remove the remaining yarn from the weft-carriers so that they may be immediately ready for further use; and, preferably, the yarn stripper is mounted on the loom so that the yarn is unwound from each spent carrier immediately on its ejection from the working shuttle. Yarn strippers of this general character are old in the art, as shown, for example, by the United States Letters Patent of Moore No. 890,865, June 16,1908.

The present invention resides in improvements upon this character of yarn stripper. In accordance with the present invention the rotary yarn stripper has a brush surface for more certainly catching the trailing end of yarn of the spent weft-carrier as it falls from the shuttle, and the brush tufts are arranged in longitudinally separated rows to facilitate the removal of the accumulated yarn from time to time. The stripping roll rapidly accumulates a mass of yarn which must be removed to enable it to be further used. Accordingly, the present improved stripping roll is journaled so as to be quickly and readily removed and replaced by a fresh one. When removed, the accumulated yarn is readily cut off from the stripping roll because of the arrangement of the brush tufts in separated parallel longitudinal rows.

The improved stripping roll is used in connection with a receiving can for the spent and stripped weft-carriers, said can having a hinged shelf below, forward of, and in the neighborhood of the stripping roll to catch the falling weft-carriers and retard their descent, thereby giving greater opportunity for the stripping roll to seize the trailing yarn, as in said Moore patent. In accordance with the present invention, this shelf is inclined outwardly, so that the weft-carriers, in moving therefrom into the receiving chamber of the can below, slide longitudinallyof the stripping roll so that the yarn is distributed along the stripping roll and does not tend to be confined to a small portion of the length of the roll.

The present improvements are illustrated in the accompanying drawings wherein- Figure l is a side view of a portion of a loom equipped With the improved yarn stripper, the shuttle box at one end of the lay and the contained shuttle being shown in vertical section. Fig. 2 is a plan view of the stripping roll and receiving can, the portion of the framework of the loom which supports the stripping roll being in horizontal section in the plane indicated by the line 2-2 in Fig. 1. Fig. 3 is an outer end view of the stripping roll. Fig. 4 is a longitudinal section of one end of the stripping roll and of the bearing therefor, the plane of the section being'indicated by the line 4-t in Fig. 1. Fig. 5 is a detail section of the other end of the stripping roll, the plane of the section being indicated by the line 55 in Fig. 1. Fig. 6 is a cross sect-ion of the shelf of the can in the plane indicated by the line 6-6 in Fig. 2. Fig. 7 is a vertical section of the body of the 'can in the plane indicated by the line 7-7 in Fig. 1.

The drawings show the improved yarn stripper mounted upon an automatic weft replenishing loom of the type shown in the United States Letters Patent of Northrop No. 529,940, November 27, 1894.; and only so much of the loom is illustrated as is necessary for an understanding of the present invention.

In Fig. 1, A is the magazine containing spare weft-carriers, and the figure illustrates the usual transferrer B in the act of placing a fresh Weft-carrier C in the working shuttle I) located in the shuttle box E of the lay ley b on a shaft M of the loom. In these respects, so far as thus descr1b ed,. the organization and mode of operation are the same as in said Moore patent.

The strippingroll K is rotatively mounted in bearings at opposite ends and in such manner as to be readily taken out and put in place when required owing to the accumulation of yarn thereon. The two ournal bearings N and O are carried by a rigid frame P which at its inner end is adjustably secured by set screw 0 (see Fig. 4) to a stud d of a bracket Q,- which is securely bolted to the framework R (see Fig. 2) of the loom. The stripping roll at its inner end has a journal pin S (see Fig. 4) which has a running fit within the bearing N; and the 'extreme outer end of the journal pin S is beveled or rounded off to facilitate its entrance into the bearing -N. At its outer end the stripping roll has a cylindrical bushed socket 6 (see Fig. 5) into which enters a bearing pin T carried by and integral with a slide U which slides len hwisein the outer bearing 0. This slide is held securely in place by a clamp consisting of a wing bolt V and it has a squared handle f at its outer end within convenient reach. In order to remove the stripping roll, the wing bolt V is unloosened and the slide U is pulled out by the handle f sufficiently far to free the pin T from the bushing e. Thereupon the outer end of the stripping roll can be swung to the dotted line position shown in Fig. 2 and it can then be moved lengthwise thus withdrawing the pin S from the bearing N. To insert a fresh stripping roll its inner end is placed within the driving belt L; the pin S is inserted in the hearing N; the roll is brought into line with the slide U; slide U is moved inwardly so that its pin T enters the bushing e the wing bolt V is tightened; the belt L is positioned in the peripheral groove 9 (see Fig. 4) at the inner end of the roll; and the fresh roll is then in operative position.

The roll is a cylinder, preferably of wood, and it is provided with longitudinal rows of brush tufts W separated by longitudinal blanks X of the roll. The brush tufts are preferably made of bristles. The roll thus made efliciently catches the trailing yarns of the ejected spent carriers as they fall onto the shelf J. The trailing yarn having been caught, the rotation of the stripping roll unwinds the yarn from the spent weftcarrier sothat only bare weft-carriers remain in the bottom chamber of the receiving can below the shelf J. When the ac cumulation of yarn on the stripping roll accumulates to an excessive amount, the roll is removed and replaced by a fresh one. The accumulated yarn can then be readily removed from the roll by running a knife lengthwise of the roll between the roll surface and the overlying yarns. This cutting action is facilitated by the longitudinal blank spaces X. Or, the knife edge can be pressed down upon the yarn and the blank spaces can be utilized to resist thedrawing action of the knife blade. The ,yarn havin been thus removed, the roll is clean an ready for furtheruse.

The shelf J is hinged at its front edge by hinge pin it to the can. The shelf J can be swung upward to the dotted line position shown in Fig. 6 to enable the accumulated bare weft-carriers to be removed from the bottom chamber of the can. The shelf is maintained in its operative weft-carrier retardin position, shown in full lines in Fig. 6 by t e stop 71. The free edge m of the shelf is spaced sufficiently from the neighboring wall of the can to permit the passage of the weft-carriers. As shown in Fig. 7 the shelf J and its hinge pin h are inclined downwardly from the inner wall .9 to the outer wall t of the can so that when the spent weft-carriers fall upon the shelf they slide outwardly and lengthwise of the stripping roll. Accordingly, the trailing yarn ends are caught by the brush surface at different points along the stripping roll thus avoiding the bunchlng of the yarn at a particular place on the roll. In practice, the yarn is wound at different places along the roll as indicated at u, o, 'w, w, 3 and z in Fig. 2. The rear outer corner Y of the shelf is inclined downwardly more abruptly than the general trend of the shelf thereby facilitating the final dropping of the spent weft-carriers into the receiving chamber of the can.

The apron H constitutes means for direct- I ing the spent weft-carriers to the stripping roll; and, the slide U, constitutes hand controlled means for releasing the stripping roll from its bearings.

I claim:

1. An automatic weft replenishing loom having, in combination, a rotary yarn stripping roller mounted in the path of the trailing yarns of ejected spent weft-carriers, said roll having a projecting pin at one end and a bushed socket at the other; a bearing for the said pin; a slide carrying a pin which enters said socket; and a clamp for holding said slide in place.

2. The combination of a rotary yarn stripping roller mounted in the path of the trailing yarns of spent weft-carriers, said roll having a projecting pin at one end and a bushed socket at the other; a bearing for the said pin; a slide carrying a pin which enters said socket; a clamp for holding said slide in place; and means for directing the Weft-carriers to said roll.

3. An automatic weft-replenishing loom having, in combination, a rotary yarn stripping roll mounted in the-path of the trailing yarns of ejected spent weft-carriers,

bearings for both ends of said roll, and hand controlled means for releasing said roll from its bearings.

4. The combination of a rotary yarn stripping roll mounted in the path of the trailing yarns of spent weft-carriers, bearings for both ends of said roll, band controlled means for releasing said roll from its bearings, and means for directing the weft-carriers to said roll.

5. An automatic weft-replenishing loom having, in combination, a rotary yarn stripping roll mounted in the path of the trailing yarns of ejected spent weft-carriers, and a shelf to catch the weft-carriers after they have passed said roll, said shelf inclining downwardly lengthwise of said roll, and having its outer rear corner rearwardly inclined and downwardly with respect to the general plane of the shelf.

6. An automatic Weft-replenishing loom, having, in combination, a rotary yarn stripping roll mounted in the path of the trailing yarns of ejected spent weft-carriers, and a shelf to catch the weft-carriers after they have passed said roll, said shelf inclining downwardly lengthwise of said roll.

7. The combination of a rotary yarn stripping roll mounted in the path of the trailing yarns of spent weft-carriers, a shelf to catch the weft-carriers after they have passed said roll, said shelf inclining downwardly lengthwise of said roll, and means for directing said weft-carriers to said roll.

In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

JOHN B. BOLTON.

Witnesses:

JOHN T. MERCER, FRANK M. ANDREWS. 

